<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8" />
  <meta http-equiv="X-UA-Compatible" content="IE=edge" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>首页</title>
  <link rel="stylesheet" href="./bootstrap/bootstrap.min.css" />
  <link rel="stylesheet" href="./bootstrap/bootstrap-icons.css" />
  <link rel="stylesheet" href="./css/common.css" />
  <style>
    .card-stats .bi {
      width: 50px;
      height: 50px;
      display: block;
      background-color: #e4e4e4;
      color: #fff;
      border-radius: 50%;
      line-height: 50px;
      text-align: center;
      font-size: 24px;
      margin-top: 4px;
    }
  </style>
</head>

<body class="application application-offset">
  <div class="container-fluid container-application">
    <div class="sidenav show" id="sidenav-main">
      <!-- Sidenav header -->
      <div class="sidenav-header d-flex align-items-center">
        <a class="navbar-brand" href="./index.html">
          <span class="logo">·ITCAST·</span>
        </a>
      </div>
      <!-- User mini profile -->
      <div class="sidenav-user d-flex flex-column align-items-center justify-content-between text-center">
        <!-- Avatar -->
        <div>
          <a href="#" class="avatar rounded-circle avatar-xl">
            <img alt="Image placeholder" src="https://yanxuan-item.nosdn.127.net/8b27deb1670c53e67c42ca3e1ed6fd12.jpg"
              class="" />
          </a>
          <div class="mt-5">
            <h5 class="mb-0 text-white">黑马前端</h5>
            <span class="d-block text-sm text-white opacity-8 mb-3">数据可视化</span>
            <a href="javascript:;" class="btn btn-sm btn-white btn-icon rounded-pill shadow hover-translate-y-n3">
              <span class="btn-inner--text">学前端来黑马</span>
            </a>
          </div>
        </div>
      </div>
      <!-- Application nav -->
      <div class="nav-application clearfix">
        <a href="./index.html" class="btn btn-square text-sm active">
          <span class="btn-inner--icon d-block"><i class="bi bi-house bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">首页</span>
        </a>
        <a href="./student.html" class="btn btn-square text-sm">
          <span class="btn-inner--icon d-block"><i class="bi bi-people bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">学生</span>
        </a>
        <a href="javascript:;" class="btn btn-square text-sm">
          <span class="btn-inner--icon d-block"><i class="bi bi-columns bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">排版</span>
        </a>
        <a href="javascript:;" class="btn btn-square text-sm">
          <span class="btn-inner--icon d-block"><i class="bi bi-files bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">资料</span>
        </a>
        <a href="javascript:;" class="btn btn-square text-sm">
          <span class="btn-inner--icon d-block"><i class="bi bi-receipt bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">就业</span>
        </a>
        <a href="javascript:;" class="btn btn-square text-sm">
          <span class="btn-inner--icon d-block"><i class="bi bi-gear bi-2x"></i></span>
          <span class="btn-inner--icon d-block pt-2">设置</span>
        </a>
      </div>
      <!-- Misc area -->
      <div class="card bg-gradient-warning">
        <div class="card-body">
          <h5 class="text-white">哈喽, 朋友!</h5>
          <p class="text-white mb-4">为什么不现在开始学习前端，创造一些令人惊叹的东西呢？</p>
          <a href="http://itcast.cn" class="btn btn-sm btn-block btn-white rounded-pill" target="_blank">Get started</a>
        </div>
      </div>
    </div>
    <div class="main-content position-relative">
      <nav class="navbar navbar-main navbar-expand-lg navbar-dark navbar-border" id="navbar-main">
        <div class="container-fluid">
          <!-- Navbar nav -->
          <div class="collapse navbar-collapse navbar-collapse-fade" id="navbar-main-collapse">
            <ul class="navbar-nav align-items-lg-center">
              <!-- Home  -->
              <li class="nav-item">
                <a class="nav-link pl-lg-0" href="./index.html"> 首页 </a>
              </li>
              <li class="nav-item">
                <a class="nav-link pl-lg-0" href="./index.html"> 传智教育 </a>
              </li>
              <li class="nav-item">
                <a class="nav-link pl-lg-0" href="./index.html"> 黑马程序员 </a>
              </li>
              <li class="nav-item">
                <a class="nav-link pl-lg-0" href="./index.html"> 文档 </a>
              </li>
            </ul>
            <!-- Right menu -->
            <ul class="navbar-nav ml-lg-auto align-items-center d-none d-lg-flex">
              <li class="nav-item dropdown dropdown-animate">
                <a class="nav-link pr-lg-0" href=".dropdown-menu" role="button" data-toggle="dropdown"
                  aria-haspopup="true" aria-expanded="false">
                  <div class="media media-pill align-items-center">
                    <span class="avatar rounded-circle">
                      <img alt="Image placeholder"
                        src="https://yanxuan-item.nosdn.127.net/8b27deb1670c53e67c42ca3e1ed6fd12.jpg" />
                    </span>
                    <div class="ml-2 d-none d-lg-block">
                      <span class="mb-0 text-sm font-weight-bold" id="username">Admin</span>
                    </div>
                  </div>
                </a>
              </li>
              <li class="nav-item">
                <a class="nav-link pl-lg-0" id="logout" href="javascript:;"> 退出 </a>
              </li>
            </ul>
          </div>
        </div>
      </nav>
      <div class="page-content">
        <!-- Page Title -->
        <div class="page-title">
          <div class="row justify-content-between align-items-center">
            <div class="col-md-6 mb-3 mb-md-0">
              <h5 class="h3 font-weight-400 mb-0 text-white">Dashboard</h5>
              <span class="text-sm text-white opacity-8">上海前端 xx 期</span>
            </div>
          </div>
        </div>
        <!-- charts -->
        <div class="row">
          <div class="col-xl-3 col-md-6">
            <div class="card card-stats">
              <div class="card-body">
                <div class="row">
                  <div class="col">
                    <h6 class="text-muted mb-1">就业薪资</h6>
                    <span name="salary" class="h3 font-weight-bold mb-0 ">10000</span>
                  </div>
                  <div class="col-auto">
                    <i class="bi bi-coin"></i>
                  </div>
                </div>
              </div>
            </div>
          </div>
          <div class="col-xl-3 col-md-6">
            <div class="card card-stats">
              <div class="card-body">
                <div class="row">
                  <div class="col">
                    <h6 class="text-muted mb-1">班级人数</h6>
                    <span name="student_count" class="h3 font-weight-bold mb-0 ">10</span>
                  </div>
                  <div class="col-auto">
                    <i class="bi bi-people"></i>
                  </div>
                </div>
              </div>
            </div>
          </div>
          <div class="col-xl-3 col-md-6">
            <div class="card card-stats">
              <div class="card-body">
                <div class="row">
                  <div class="col">
                    <h6 class="text-muted mb-1">平均年龄</h6>
                    <span name="age" class="h3 font-weight-bold mb-0 ">20</span>
                  </div>
                  <div class="col-auto">
                    <i class="bi bi-calendar2-week"></i>
                  </div>
                </div>
              </div>
            </div>
          </div>
          <div class="col-xl-3 col-md-6">
            <div class="card card-stats">
              <!-- Card body -->
              <div class="card-body">
                <div class="row">
                  <div class="col">
                    <h6 class="text-muted mb-1">小组个数</h6>
                    <span name="group_count" class="h3 font-weight-bold mb-0 ">5</span>
                  </div>
                  <div class="col-auto">
                    <i class="bi bi-collection"></i>
                  </div>
                </div>
              </div>
            </div>
          </div>
        </div>
        <div class="row">
          <div class="col col-xl-8">
            <div class="card" id="line" style="height: 400px;"></div>
          </div>
          <div class="col col-xl-4">
            <div class="card" id="salary" style="height: 400px;"></div>
          </div>
          <div class="col col-xl-12">
            <div class="card" style="height: 400px;">
              <div class="card-header">
                <div class="d-flex justify-content-between align-items-center">
                  <h6 class="mb-0">班级每组薪资</h6>
                  <div id="btns">
                    <button type="button" class="btn btn-xs btn-blue">1</button>
                    <button type="button" class="btn btn-xs ">2</button>
                    <button type="button" class="btn btn-xs ">3</button>
                    <button type="button" class="btn btn-xs ">4</button>
                    <button type="button" class="btn btn-xs ">5</button>
                    <button type="button" class="btn btn-xs ">6</button>
                    <button type="button" class="btn btn-xs ">7</button>
                    <button type="button" class="btn btn-xs ">8</button>
                  </div>
                </div>
              </div>
              <div class="card-body p-0" id="lines"></div>
            </div>
          </div>
          <div class="col col-xl-4">
            <div class="card" id="gender" style="height: 500px;"></div>
          </div>
          <div class="col col-xl-8">
            <div class="card" id="map" style="height: 500px;"></div>
          </div>
        </div>
        <!-- footer -->
        <div class="footer pt-5 pb-4 footer-light" id="footer-main">
          <div class="row text-center text-sm-left align-items-sm-center">
            <div class="col-sm-6">
              <p class="text-sm mb-0">© 2022 <a href="https://itcast.cn" class="h6 text-sm" target="_blank">前端学科</a>.
                All rights reserved.</p>
            </div>
            <div class="col-sm-6 mb-md-0">
              <ul class="nav justify-content-center justify-content-md-end">
                <li class="nav-item">
                  <a class="nav-link" href="#">Support</a>
                </li>
                <li class="nav-item">
                  <a class="nav-link" href="#">Terms</a>
                </li>
                <li class="nav-item">
                  <a class="nav-link pr-0" href="#">Privacy</a>
                </li>
              </ul>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
  <script src="./bootstrap/bootstrap.min.js"></script>
  <script src="./lib/axios.js"></script>
  <script src="./lib/echarts.min.js"></script>
  <script src="./js/common.js"></script>
  <script src="./lib/china.js"></script>
  <script>
    const token = localStorage.getItem("cms-token")
    if (!token) {
      location.href = './login.html'
    }
    // 1.显示登录的账号名
    // 1.1 获取本地存储里面的cms-username值
    // 1.2 获取显示账号名的dom元素并修改其值为本地获取的username
    // 将用户账号名替换成我么登录的账号名
    let username = localStorage.getItem("cms-username")
    document.querySelector("#username").innerHTML = username
    // 2. 获取ajax发送过来的学生信息
    // 2.1 发送ajax请求
    axios({
      url: "/dashboard",
      /*  headers:{
         Authorization:localStorage.getItem("cms-token")
       }, */
      method: "get"
    }).then(res => {
      console.log(res);
      const { overview, year, salaryData, groupData,provinceData} = res.data
      // 概览并修改学生数据
      for (let k in overview) {
        document.querySelector(`[name=${k}]`).innerHTML = overview[k]
      }
      setLine(year)
      setPie(salaryData)
      setBar(groupData)
      setSecondPie(salaryData)
      setMap(provinceData)
    })
    // 获取退出dom元素并注册事件
    document.querySelector("#logout").addEventListener("click", function () {
      // 用confirm确认框判断用户是否退出,如果点击确认这跳转页面
      if (confirm("是否退出?")) {
        location.href = "./login.html"
        // 清空本地存储
        localStorage.clear()
      }
    })
    // 定义一个函数实现折线图
    const setLine = arr => {
      // 基于准备好的dom，初始化echarts实例
      let myChart = echarts.init(document.querySelector("#line"))
      // 指定图表的配置项和数据
      const option = {
        title: {
          text: "2021各学科薪资统计",
          textStyle: {
            fontSize: 16,

          },
          top: 15,
          left: 10
        },
        xAxis: {
          type: 'category',
          // x轴用月份作为刻度
          data: arr.map(item => item.month),
          axisLine: {
            lineStyle: {
              type: 'dashed',
              color: '#666'
            }
          },
          axisTick: {
            lineStyle: {
              color: '#666'
            }
          },

        },
        yAxis: {
          type: 'value',
          splitLine: { // 分割线样式
            lineStyle: {
              type: 'dashed',
            }
          }
        },
        grid: {
          top: "20%",
        },
        tooltip: { // 提示组件
          trigger: 'axis',
        },

        series: [
          {
            data: arr.map(item => item.salary),
            type: 'line',
            smooth: true,
            symbolSize: 10,
            grid: {
              top: "20%",
            },

            lineStyle: {
              color: {
                type: "linear",
                x: 0,
                x2: 1,
                y: 0,
                y2: 0,
                colorStops: [{
                  offset: 0, color: '#499FEE' // 0% 处的颜色
                }, {
                  offset: 1, color: '#5D75F0' // 100% 处的颜色
                }],

                global: false // 缺省为 false
              },
              width: 6
            },
            areaStyle: {
              color: {
                type: "linear",
                x: 0,
                x2: 0,
                y: 0,
                y2: 1,
                colorStops: [{
                  offset: 0, color: '#499FEE' // 0% 处的颜色
                }, {
                  offset: 0.8, color: 'rgba(255, 255, 255, 0.2)' // 80% 处的颜色
                }, {
                  offset: 1, color: 'rgba(255, 255, 255, 0)' // 100% 处的颜色
                }],

                global: false // 缺省为 false
              }
            }
          }
        ]
      };
      // // 使用刚指定的配置项和数据显示图表
      myChart.setOption(option)
    }
    // 定义一个函数实现饼状图
    const setPie = arr => {
      let myChart = echarts.init(document.querySelector("#salary"))
      const option = {
        title: {
          text: "班级薪资分布",
          textStyle: {
            fontSize: 16,

          },
          top: 15,
          left: 10
        },
        tooltip: {
          trigger: 'item'
        },
        legend: {
          bottom: '6%',
          left: 'center'
        },
        series: [
          {
            name: arr.map(item => item.label),
            type: 'pie',
            radius: ['50%', '64%'],
            itemStyle: {
              borderRadius: 10,
              borderColor: '#fff',
              borderWidth: 2
            },
            label: {
              show: false,
              position: 'center'
            },

            labelLine: {
              show: false
            },
            data: arr.map(obj => {
              return {
                value: obj.g_count + obj.b_count,
                name: obj.label
              }
            })
          }
        ]
      };
      myChart.setOption(option)
    }
    const setBar = obj => {
      let myChart = echarts.init(document.querySelector("#lines"))
      const btns = document.querySelectorAll("#btns button")
      btns.forEach(item => {
        for (let i = 0; i <= btns.length; i++) {
          item.addEventListener("click", function () {
            document.querySelector("#btns button.btn-blue").classList.remove("btn-blue")
            this.classList.add("btn-blue")
            console.log(item.innerHTML);
            // 普通写法
            /* const option = {
              grid: {
                left: 70,
                top: 30,
                right: 30,
                bottom: 50,
              },
              tooltip: {
                trigger: 'item',
              },
              xAxis: {
                type: 'category',
                data: obj[item.innerHTML].map(obj => obj.name),
                axisLine: {
                  lineStyle: {
                    color: '#ccc',
                    type: 'dashed'
                  }
                },
                axisLabel: {
                  color: '#999'
                }
              },
              yAxis: {
                type: 'value',
                splitLine: {
                  lineStyle: {
                    type: 'dashed'
                  }
                }
              },
              series: [
                {
                  data: obj[item.innerHTML].map(obj => obj.hope_salary),
                  type: 'bar',
                  name: '期望薪资'
                },
                {
                  data: obj[item.innerHTML].map(obj => obj.salary),
                  type: 'bar',
                  name: '就业薪资'
                }
              ],
              color: [
                {
                  type: 'linear',
                  x: 0,
                  y: 0,
                  x2: 0,
                  y2: 1,
                  colorStops: [
                    {
                      offset: 0,
                      color: '#34D39A', // 0% 处的颜色
                    },
                    {
                      offset: 1,
                      color: 'rgba(52,211,154,0.2)', // 100% 处的颜色
                    },
                  ],
                },
                {
                  type: 'linear',
                  x: 0,
                  y: 0,
                  x2: 0,
                  y2: 1,
                  colorStops: [
                    {
                      offset: 0,
                      color: '#499FEE', // 0% 处的颜色
                    },
                    {
                      offset: 1,
                      color: 'rgba(73,159,238,0.2)', // 100% 处的颜色
                    },
                  ],
                },
              ],
            } */
            // 优化写法
            // 鼠标点击button让柱状图显示相应的数据
            /* 
            1. 获取鼠标点击的 button的innerHtml|innerText文本内容
            2. 数据切换?obj对象通过对象的属性可以找到对应的组
            3. 让配置对象里面对应的数据显示成对应组的数据
            4. 重新让echarts实例对象的setOption调用
            */
            const index = item.innerHTML
            const groupData = obj[index]
            option.xAxis.data = groupData.map(item => item.name)
            option.series[0] = groupData.map(item => item.hope_salary)
            option.series[1] = groupData.map(item => item.salary)
            myChart.setOption(option)
          })
        }
      })

      const option = {
        grid: {
          left: 70,
          top: 30,
          right: 30,
          bottom: 50,
        },
        tooltip: {
          trigger: 'item',
        },
        xAxis: {
          type: 'category',
          data: obj[1].map(obj => obj.name),
          axisLine: {
            lineStyle: {
              color: '#ccc',
              type: 'dashed'
            }
          },
          axisLabel: {
            color: '#999'
          }
        },
        yAxis: {
          type: 'value',
          splitLine: {
            lineStyle: {
              type: 'dashed'
            }
          }
        },
        series: [
          {
            data: obj[1].map(obj => obj.hope_salary),
            type: 'bar',
            name: '期望薪资'
          },
          {
            data: obj[1].map(obj => obj.salary),
            type: 'bar',
            name: '就业薪资'
          }
        ],
        color: [
          {
            type: 'linear',
            x: 0,
            y: 0,
            x2: 0,
            y2: 1,
            colorStops: [
              {
                offset: 0,
                color: '#34D39A', // 0% 处的颜色
              },
              {
                offset: 1,
                color: 'rgba(52,211,154,0.2)', // 100% 处的颜色
              },
            ],
          },
          {
            type: 'linear',
            x: 0,
            y: 0,
            x2: 0,
            y2: 1,
            colorStops: [
              {
                offset: 0,
                color: '#499FEE', // 0% 处的颜色
              },
              {
                offset: 1,
                color: 'rgba(73,159,238,0.2)', // 100% 处的颜色
              },
            ],
          },
        ],
      }
      myChart.setOption(option)
    }
    const setSecondPie = arr => {
      let myChart = echarts.init(document.querySelector("#gender"))
      const option = {
        title: [
          {
            text: '男女薪资分布',
            left: 10,
            top: 10,
            textStyle: {
              fontSize: 16,
            },
          },
          {
            text: '男生',
            left: '50%',
            top: '45%',
            textAlign: 'center',
            textStyle: {
              fontSize: 12,
            },
          },
          {
            text: '女生',
            left: '50%',
            top: '85%',
            textAlign: 'center',
            textStyle: {
              fontSize: 12,
            },
          },
        ],
        tooltip: {
          trigger: 'item'
        },
        color: ['#FDA224', '#5097FF', '#3ABCFA', '#34D39A'],
        series: [
          {
            type: 'pie',
            radius: 50,
            radius: ['20%', '30%'],
            center: ['50%', '30%'],
            datasetIndex: 1,
            data: arr.map(obj => {
              return {
                value: obj.g_count,
                name: obj.label
              }
            })

          },
          {
            type: 'pie',
            radius: 50,
            radius: ['20%', '30%'],
            center: ['50%', '70%'],
            datasetIndex: 2,
            data: arr.map(obj => {
              return {
                value: obj.b_count,
                name: obj.label
              }
            })
          }
        ]
      }
      myChart.setOption(option)
    }
    // 创建一个函数用来封装可视化地图板块
    const setMap = data=> {
      // 初始化cms容器来装可视化图表
      let myChart = echarts.init(document.querySelector("#map"))
       // 地图默认数据
      const dataList = [
        { name: '南海诸岛', value: 0 },
        { name: '北京', value: 0 },
        { name: '天津', value: 0 },
        { name: '上海', value: 0 },
        { name: '重庆', value: 0 },
        { name: '河北', value: 0 },
        { name: '河南', value: 0 },
        { name: '云南', value: 0 },
        { name: '辽宁', value: 0 },
        { name: '黑龙江', value: 0 },
        { name: '湖南', value: 0 },
        { name: '安徽', value: 0 },
        { name: '山东', value: 0 },
        { name: '新疆', value: 0 },
        { name: '江苏', value: 0 },
        { name: '浙江', value: 0 },
        { name: '江西', value: 0 },
        { name: '湖北', value: 0 },
        { name: '广西', value: 0 },
        { name: '甘肃', value: 0 },
        { name: '山西', value: 0 },
        { name: '内蒙古', value: 0 },
        { name: '陕西', value: 0 },
        { name: '吉林', value: 0 },
        { name: '福建', value: 0 },
        { name: '贵州', value: 0 },
        { name: '广东', value: 0 },
        { name: '青海', value: 0 },
        { name: '西藏', value: 0 },
        { name: '四川', value: 0 },
        { name: '宁夏', value: 0 },
        { name: '海南', value: 0 },
        { name: '台湾', value: 0 },
        { name: '香港', value: 0 },
        { name: '澳门', value: 0 },
      ]
      // 先遍历地图默认省份数据,用一个data 变量接收形参data里面由服务器传过来的省份数据,定义一个obj变量,然后obj接收用find方法查找data中符合条件的第一个数据,并返回结果看与找到的数据里面的name属性是否在地图默认数据中同样存在,如果存在则将服务器传过来的即data形参里的value值赋值给地图默认数据里面的value属性
      dataList.forEach(item=>{
        const obj=data.find(pro=>{
          return pro.name.indexOf(item.name)!==-1
        })
        if(obj) item.value=obj.value
      })
      // 配置option对象
      let option = {
        title: {
          text: '籍贯分布',
          top: 10,
          left: 10,
          textStyle: {
            fontSize: 16,
          },
        },
        tooltip: {
          trigger: 'item',
          formatter: '{b}: {c} 位学员',
          borderColor: 'transparent',
          backgroundColor: 'rgba(0,0,0,0.5)',
          textStyle: {
            color: '#fff',
          },
        },
        visualMap: {
          min: 0,
          max: 6,
          left: 'left',
          bottom: '20',
          text: ['6', '0'],
          inRange: {
            color: ['#ffffff', '#0075F0'],
          },
          show: true,
          left: 40,
        },
        geo: { // 地理坐标系组件
          map: 'china',
          roam: false,
          zoom: 1.0,
          label: {
            normal: {
              show: true,
              fontSize: '10',
              color: 'rgba(0,0,0,0.7)',
            },
          },
          itemStyle: {
            normal: {
              borderColor: 'rgba(0, 0, 0, 0.2)',
              color: '#e0ffff',
            },
            emphasis: {
              areaColor: '#34D39A',
              shadowOffsetX: 0,
              shadowOffsetY: 0,
              shadowBlur: 20,
              borderWidth: 0,
              shadowColor: 'rgba(0, 0, 0, 0.5)',
            },
          },
        },
        series: [
          {
            name: '籍贯分布',
            type: 'map',
            geoIndex: 0,
            data: dataList,
          },
        ],
      }
      // 
      myChart.setOption(option)
    }
  </script>
</body>

</html>